HP HP 6720S starts with black screen
- By mohkamtech
Hi members,
Hp 6720s- platform: DDD UMA 6050A2137901-MB-A03
When started, fan spins continuously but no display on screen and external monitor.
Current reading : 0.003-0.48 and stopped at 0.68
Steps made :
Replaced ram, and cpu, with known good working ones, same problem.
Flashed bios, reflowed GPU for test purpose to no avail.
Tested mobo :
-CPU voltages :
Vcc_Core :+1.12V
VCCP : +1.18V
+V1.5S : +1.7V a little high
H_Pwrgd : +1.18V
H_Cpurst# :+ 1.8V
GPU voltages : +1.18V...
Hp 6720s- platform: DDD UMA 6050A2137901-MB-A03
When started, fan spins continuously but no display on screen and external monitor.
Current reading : 0.003-0.48 and stopped at 0.68
Steps made :
Replaced ram, and cpu, with known good working ones, same problem.
Flashed bios, reflowed GPU for test purpose to no avail.
Tested mobo :
-CPU voltages :
Vcc_Core :+1.12V
VCCP : +1.18V
+V1.5S : +1.7V a little high
H_Pwrgd : +1.18V
H_Cpurst# :+ 1.8V
GPU voltages : +1.18V...
